add pinia and a tmp global stores

src/main.js

@@ -1,9 +1,12 @@
 import { createApp } from "vue";
 import App from "./App.vue";
 import { store } from "./store";
+import { createPinia } from "pinia";
 
 const app = createApp(App);
+const pinia = createPinia();
 
 app.use(store);
+app.use(pinia);
 
 app.mount("#app");